US2443301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid operable stroke controlling device for fluid pumps
Assignee: HPM Development Corp
•
Filing: 1945-07-09
•
Granted: 1948-06-15
•
Expires: 1965-07-09
Abstract
No abstract record available.
Inventors
- 👤 Ray S Conabee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:19
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1782390A
Cited
US2192778A
Cited
US2253617A
Cited
US1035849A
Cited
US2226821A
Cited
US2273721A
Cited
US2298359A
Cited
US2346214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |